A Practical Staff Scheduling Strategy Considering Various Types of Employment in the Construction Industry

The Korean government implemented a 52-h workweek policy for employees’ welfare. Consequently, companies face workforce availability reduction with the same number of employees. That is, labor-dependent suffer from shortage. To handle shortage, they increase irregular employees who are paid relatively less. However, problem ‘no-show’, due to stochastic characteristics employee’s absence, happens. Therefore, this study aims propose staff scheduling strategy considering employee absence and new labor by using linear programming. By deriving deterministic schedule through system parameters derived features rules an actual company in numerical experiment, practicality applicability developed mathematical model proven. Furthermore, sensitivity analysis simulation absences, various proactive cases provided. Through cases, influence change average percent absences on total costs schedules expected would not come work could be given when assuming application practice. This finding can help decision-makers prepare precautious measures, such as assigning extra case absence.